JPS6056201A - Variable block gauge - Google Patents

Abstract

PURPOSE:To elevate the accuracy with an easy measurement by mounting a mobile block slidably on the slant slide surface provided on the other side of a body block to tead out the movement in the direction of the measuring surface with a micrometer. CONSTITUTION:First, the dimension is defined between both measuring end faces 3 and 5 while recording the reading of a micrometer 10 when a mobile block 6 is retreated to the max. limit. Then, varible block gauges 1 in a groove A to be measured are vertically arrayed together with other block gauges (a), (b)... with an appropriate dimension. Then, the mobile block 6 is slid to put the measuring and face 5 thereof tight on the inner wall B and the current movement of the mobile block 6 in the direction Y is read by the micrometer 10.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a variable block gauge, and more particularly, the present invention relates to a variable block gauge that allows the length between end faces to be easily changed, the amount of change to be easily read, and other suitable nominal dimensions. This invention relates to a device that allows precision measurement to be easily performed in combination with a block gauge.

A block gauge is a terminal made of hardened steel with a rectangular cross section of different thickness and length. Both end faces, which represent the nominal dimensions, are finished by ramp processing to be correctly parallel and flat, and the distance between the end faces is The dimensional accuracy is very good. This block gauge is also available as a set by combining gauges of various sizes, and by bringing the nominal dimension end faces of two or more gauges into close contact with each other, it is possible to create almost any dimension.

For example, using such a conventional Ω block gauge,
When measuring the width of a groove that requires precision, as shown in FIG. 3, gages of several nominal sizes are brought into close contact with each other and measured by fitting them into the groove. At this time, the width of the groove is the sum of the nominal dimensions of several block gauges that are assembled so as to fit snugly into the opposite wall of the groove.

However, such conventional measuring methods have the disadvantage that block gauges of appropriate nominal dimensions must be combined each time a measurement is made, and the measurement takes a very long time. That is, the total nominal size must be created in 1/100 mm increments by changing the combination of block gauges.

The present invention was conceived under the above circumstances, and its purpose is to provide a structure in which the dimension between the end faces can be easily changed and the amount of change can be easily read. An object of the present invention is to provide a variable block gauge and facilitate measurement using the block gauge.

In order to achieve such an objective, the present invention takes the following technical measures.

That is, a slide surface inclined with respect to the measurement end surface is provided on the other side of the main body block with the − side as the measurement end surface, and a movable block having a measurement end surface parallel to the measurement end surface is slid onto the slide surface. and the amount of movement of the movable block in the direction of the measurement surface is read by a micrometer supported by the main block.

The direction perpendicular to the measurement end face of the main block and the measurement end face of the movable block is the X direction, and the direction perpendicular to this direction is the Y direction.
When the movable block moves on the slide surface, the movable block moves simultaneously in the X direction and the Y direction. The movement in the X direction changes the dimension between the measurement end surface of the main block and the measurement end surface of the movable block. For example, if the inclination angle of the slide surface is set to 45 degrees, when the amount of movement of the movable block in the Y direction is read with a micrometer, this amount of movement directly corresponds to the amount of dimensional change between the measured end surfaces. Therefore, with the movable block gauge of the present invention, by simply sliding the movable block and reading the amount of movement with a micrometer attached to the main block, it is not possible to finely combine multiple gauges as in the past. Precise measurement of a desired object to be measured can be carried out without any problems, and precision measurement using this type of block gauge can be greatly simplified.

Embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 shows an entire embodiment of the present invention.

As is clear from the figure, variable block gauge 1 in this example
has a main body block 2 that has a rectangular parallelepiped shape as a whole, and one side of this main body block 2 is finished into a precise flat surface to form a measurement end surface 3, and the side opposite to this measurement end surface 3 is shaped into a right triangle. A sloped sliding surface 4 is formed in this portion by cutting out the shape. A movable block 6 having a measurement end surface 5 exactly parallel to the measurement end surface 3 is attached to the slide surface 4 so as to be slidable in the direction of the slide surface. In the illustrated example, the slide surface 4 is provided with a dovetail groove 7, and the movable block 6 is provided with a protrusion 8 that can be slidably engaged with the dovetail groove 7, thereby controlling the directionality of the movable block 6. It is kept constant so that it can move in parallel.

On the other hand, on the upper wall 9 of the main body block 2, which is formed by providing a rectangular parallelepiped block with a right triangular notch as described above, there is a micrometer head 10 with its spindle 11 facing in the vertical direction. It is fixed as follows. The tip of the spindle 11 of this micrometer head 10 is in contact with the upper surface of the movable block 6, so that the amount of displacement of the movable block 6 in the vertical direction, that is, in the Y direction in FIG. 1, can be precisely measured. It has become.

As is clear from FIG. 1, when the movable block 6 moves on the slide surface 4 of the main block 2, the movable block 6 moves simultaneously in the X direction and the Y direction. If the inclination angle α of the slide surface 4 with respect to the horizontal direction is set to, for example, 45 degrees, then the amount of movement in the X direction and Y
Since the amount of movement in the directions is equal, when the amount of movement of the movable block 6 in the Y direction is measured with the micrometer 10a, the reading of the measurement is the amount of movement of the movable block 2 in the X direction, that is, this variable block gauge. This is the amount of change in dimension between both measurement end faces 3 and 5.

Next, an example of a method for measuring groove width using this variable block gauge 1 will be explained.

First, as shown by the imaginary line in FIG. 1, determine the dimension between the two measurement end faces 3°5 when the movable block 6 is moved back as much as possible, and record the reading of the micrometer 10a at this time. I'll keep it. Then, as shown in FIG. 3, this variable block gauge 1 is placed in tandem with other conventional block gauges a, b, . . . of appropriate nominal dimensions in the groove A to be measured.

In this case, an appropriate gap is left between the fixed end surface 5 of the movable block 6, which has been moved back to the maximum extent as described above, and the inner wall B to the groove. Next, the movable block 6 is slid to bring its measurement end face 5 into close contact with the inner wall B, and the amount of movement of the movable block 6 in the Y direction is measured using a micrometer 10.
Read by a. Since we know the dimension between the first measuring end faces 3 and 5 of the movable block gauge and the nominal dimensions of the block gauges a, b, etc. arranged in tandem with this, we add the movable boob read by the micrometer to the sum of these.
The addition of the amount of movement of the lock 6 provides the exact width of the groove.

As described above, in the measurement method using the variable block gauge of the present invention, the conventional work of creating the sum of nominal dimensions in 1/100 mm increments by changing the combination of block gauges is replaced by This can be replaced by the extremely simple task of moving the measurement end face so that it comes into close contact with the object to be measured, and reading the amount of movement with an attached micrometer. Since micromake can usually be measured down to 1/100 tnm, the accuracy of the measurement results is comparable to the conventional measurement method using only a block gauge.

As described above, the variable block gauge of the present invention is an epoch-making device that has the unique effect of making measurements using the block gauge extremely simple.

It goes without saying that the scope of the present invention is not limited to the embodiments shown in the drawings.

For example, in the illustrated example, the movable block is slidably fitted into a guide groove provided on the sliding surface of the main block, but there is no particular need to do this, and the main block and the movable block are basically separated. The movable block may be assembled as a body so that the sliding surface of the movable block comes into close contact with the sliding surface of the main block during use. Also, the inclination angle α of the slide surface with respect to the horizontal plane does not need to be 45 degrees,
You can set it at any angle. In this case, by multiplying the amount of movement of the movable block in the Y direction by tan α, the amount of movement of the movable block in the Y direction can be calculated. Further, in this case, if the inclination angle α is brought closer to 90 degrees, the displacement of the movable block in the X direction is expanded to become a displacement in the Y direction, which is advantageous because the accuracy of δl can be improved.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, and FIG. 1 is an overall perspective view of one embodiment, FIG. 2 is a sectional view taken along line u-n in FIG.
The figure is a sectional view showing an example of a measuring method using the variable block gauge of the present invention.

Claims (1)

[Claims] fl) - The other side of the main body block whose side surface is the measurement end surface is inclined with respect to the measurement end surface. A slide surface is provided, and a movable block having a measurement end surface parallel to the measurement end surface is slidably mounted on the slide surface, and the amount of movement of the movable block in the direction of the measurement surface is supported by the main body block. A variable block gauge characterized by being read by a meter.